• Born: 26 Dec 1194, Iesi, Ancona
• Married (1): Feb 1210, Messina, Italy
• Married (2): 9 Nov 1225, Brindisi Cathedral
• Married (3): 20 Jul 1235
• Married (4):
• Died: 13 Dec 1250, Castel Fiorentino near Lucera, Foggia, Italy
• Buried: 25 Feb 1251, Palermo Cathedral

  Research Notes:

He succeeded his father in 1197 as FEDERIGO I King of Sicily, under the regency of his mother, crowned 17 May 1198 at Palermo cathedral. He declared himself of age 26 Dec 1208. Emperor Otto IV invaded Naples, became master of continental Sicily by 1211 and was preparing to invade the island of Sicily with Pisan support, when Friedrich was again elected as FRIEDRICH II King of Germany 5 Dec 1212 at Frankfurt-am-Main, crowned at Mainz 9 Dec 1212 and at Aachen 25 Jul 1215. He was crowned as Emperor FRIEDRICH II in Rome 22 Nov 1220. He declared himself FRIEDRICH King of Jerusalem at Brindisi 9 Nov 1225. He replaced Eudes de Montbéliard as regent of Jerusalem by Thomas of Aquino Count of Acerra in 1226. He sailed from Brindisi 8 Sep 1227 for Jerusalem but fell ill at Otranto, where Ludwig IV Landgraf of Thuringia had been put ashore due to sickness, and postponed his journey while recuperating. He embarked again at Brindisi 28 Jun 1228, although his second wife had meanwhile died which put in doubt his right to the kingdom of Jerusalem, and landed in Cyprus in Jul 1228. He left Cyprus for Acre 3 Sep 1228, and after lengthy negotiations signed a ten year peace treaty with Sultan al-Kamil 18 Feb 1229 under which the city of Jerusalem was returned to the kingdom of Jerusalem. He made his ceremonial entry to Jerusalem 17 Mar 1229, and crowned himself king the next day in the Church of the Holy Sepulchre, before sailing back to Europe from Acre 1 May 1229 after appointing Eudes de Montbéliard as Constable of Jerusalem and Balian of Sidon and Garnier the German as baillies. He landed at Brindisi 10 Jun 1229. Friedrich was excommunicated and deposed as emperor 17 Jul 1245 by Pope Innocent IV.

He died from dysentery. His death is recorded by Matthew Paris, who specifies the date but not the place and gives details of his testament. The Historia Sicula of Bartolomeo di Neocastro records the death in Dec 1250 "in festo beate Lucie virginis" of "dominus Fridericus secundus…Romanorum…imperator" and his burial "in majori ecclesia Panormitana". ¹